A4-032-1

Floating Self-Clinching Fasteners A4, AS, AC

A4-032-1

Floating Self-Clinching Fasteners A4, AS, AC

Locking and Non-locking Threads These fasteners provide load-bearing threads in thin sheets and permit up to .030” adjustment for mating hole misalignment.

The self-clinching feature offers fast and simple assembly. The fasteners are squeezed into prepared holes using any standard press. The sheet remains flush on one side, and the fastener is permanently locked in place.

Extra strength and support in assembly is obtained by the threads of the floating nut extending fully into the retainer shank (a unique PEM feature). A self-locking version of the fastener is also offered. Thread locking torque performance is equivalent to applicable NASM25027 specifications.

Non-locking Type A4 and self-locking Type LA4 fasteners provide load-bearing threads in stainless steel sheets as thin as .038” with hardness up to HRB 88 on the Rockwell “B” scale.

Many PEM Type AS and AC self-clinching floating fasteners correspond to sizes in US NASM45938/11 specifications. Check our web site for a complete Military Specification and National Aerospace Standards Reference Guide (Bulletin NASM).

Specifications

Gewinde Code
032
Thread Size
#10-32
Thread Specification
2B, ANSI B1,1, Intern
Shank Code
1
Fastener Material
400er Edelstahl
Fastener Materials – Nut
300 Series Stainless Steel
Fastener Materials – Retainer
400 Series Stainless Steel
Standard Finish – Retainer & Nut
Passivated and/or tested per ASTM A380
For Use in Sheet Hardness
HRB 88 / HB 183 or Less
Float
.015” minimum, in all directions from center, .030” total
Product Category
Floating Self-Clinching Fasteners A4, AS, AC
CAD Supplier
PennEngineering® (PEM®)
CADPartID
103680
Thread Type
Non-Locking
Application Type
Industriell, Fertigung; Blechverarbeitung
Base Panel Material
Stahl
Brand
PEM
Fastener Characteristics
Schwimmend, Nicht verriegelbar
Industry
Industriell; Kommerziell
Installation Equipment/Method
C-Frame Automatischer Vorschub / Feed, C-Rahmen Manueller Vorschub / Feed
PEM Product Family
ALA, SS
Product Type
Muttern
Technology Type
Selbst-einpressend
Unit (Metric/Unified)
einheitlich
A Shank Max
0.038in
E ± .015_in
.470in
Hole Size in Sheet + .003 – .000_in
.406in
Min. Dist. Hole C/L to Edge_in
.360in
Min. Sheet Thickness_in
.038in
C Max._in
.405in
D Max._in
.405in
T1 Max._in
.170in

Resources

Installation & Performance Data

ala-a4-la4-unified
TYPE THREAD CODE TEST SHEET MATERIAL INSTALLATION (lbs.) RETAINER PUSHOUT (lbs.) RETAINER TORQUE-OUT (in. lbs.)
A4, LA4 032 300 Series Stainless Steel 13000 250 125
ss-a4-la4-nuts-unified
TYPE THREAD CODE TEST SHEET MATERIAL INSTALLATION (lbs.) RETAINER PUSHOUT (lbs.) RETAINER TORQUE-OUT (in. lbs.)
A4, LA4 032 300 Series Stainless Steel 13000 250 125

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